Improvement in agricultural steamers



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Agricultural-Steamers.

No. 129,729.` PawnredJu1y2s, 1872.

\ FLM l f UNITED STATES WILLIAM M. GORDON, OF MINONK, ILLINOIs.`

' Specification forming part of Letters Patent No. 129,729, dated July23, 1872.

To all whom it may concern:

`Be it known that I, WILLIAM M. GORDON, of Minonk, in the county ofWoodford, in the State of Illinois, have invented an Improvement inBoilers or Steamers for Steaming or Boiling Cattle-Feed, &c.; and dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the annexed drawing makingpart of this specification, in which like letters of reference referto'like parts, and inwhich- Figure 1 represents a front elevation; Fig.2, a longitudinal vertical section; Fig. 3, transverse vertical section.

This invention consists of two parallel shells of boiler-iron, which areplaced about half an inch apart, and between which the water is placedfand. steam is generated, the lwhole curved, and spanning and` inclosingthe reybox and ilues or nre-passage. The ends are riveted to the shells,and further braced with rods. From the steam-spacca pipe with a .cockpasses into a supply or water reservoir,

and from whose bottom another pipe passes into the water-space of theboiler to inject water into the latter. A steam-pipe passes from thesteam-space, also fitted with a cock, into a vessel for cooking feed.A

Letter A represents the back end of the boiler, through which thesmoke-pipeF passes; B, the front endof said boiler, in which are thefire-doors f g. These two ends may be ofcast-iron, and lmolded with agroove near the outer edge, the ends of the side plates or boiler-shellC c to pass into said groove, and

` l are further secured `by longitudinal braces or l rods aa D c. LetterG is the outer plate of the boiler proper; c', the inner plate. Betweenthese the water is contained and steam generated. They are parallel witheach other, and are about half an inch apart,'and constructed in thismanner by placing a wrought-iron bar of the thickness of half an inchbetween the two shells C c', and riveting through the whole.

The ends of the shell are set in the grooves `of the respective plates AB. A safety-valve,4

G, is set inthe top of the said outer shell. Letter D is a horizontaliron rod, passing through the center of the front and rear .end plates AB, inwhichit is set loosely, so as to turn the attached l damper d,which closes up to the front plate B ofthe boiler, and `extends fromshell to shell c c', leaving a fire-passage at its rear end between itand the rear plate A. Letter E is a stationary damper or heatconductor,attached to the horizontal brace-I rod c, and closes the fire-space atthis height,

and terminates near the bottom of the same;

letter M, the. fire-box, made of cast-iron, and attached to the loweredges of the shells C c on both sides of the boiler, and extending fromend to end by means of a horizontal extension, M. The entrance to therire-box and ash-pit is through the doors f g in the end plate B. l s

The operation of this steamer is as follows: Before raising steam theboiler O c', except a small steam-space, and the reservoir H are chargedwith necessary water, and the cockk ofthe reservoir is closed, and there may then be started. When it is necessary to replenish the boiler,the valve h in the pipe I is opened, and water will descend into theboiler along the pipe J. The flame or heat passes from the fire-box Malong the lower vertical surfaces of the boiler C c', and is thencedelected upward by the damper d on the rod D; thence it passes upwardand horizontally between the dampers d and E `to the front plate B;thence back, along the under surface of the shell c `of the boiler C c',and away by the pipe F in the rear plate A. In this manner a greatfire-surface and draught,with alarge economy of fuel and quick raisingof steam, are obtained, together with perfect safety in the use of theapparatus conferred by the attached safety-valve. The feed is cookedinthe reservoir K to any extent by means of the boiling-pipe or injectorL from the boiler C c', the supply of steam being regulated by a valve,i. Y

What I claim as my invention is 1. The boiler or feed-steamer, whencon-- structed with the outer and inner plates or shells U c', inclosingthe Water and steam-space,

In testimony that I claim the foregoing boiler or steamer for cookingfeed I have hereunto set my hand this 27th day of May, A. D.

WILLIAM M. GORDON.

Witnesses JAMES M. FORT, JAMES MORSE.

